jgit/org.eclipse.jgit.test/tst/org/eclipse/jgit/events/ConfigChangeEventTest.java

/*
 * Copyright (C) 2010, Mathias Kinzler <mathias.kinzler@sap.com>
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Distribution License v1.0 which
 * accompanies this distribution, is reproduced below, and is
 * available at http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
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 * - Redistributions of source code must retain the above copyright
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package org.eclipse.jgit.events;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;

import org.eclipse.jgit.lib.RepositoryTestCase;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.junit.Test;

public class ConfigChangeEventTest extends RepositoryTestCase {
	@Test
	public void testFileRepository_ChangeEventsOnlyOnSave() throws Exception {
		final ConfigChangedEvent[] events = new ConfigChangedEvent[1];
		db.getListenerList().addConfigChangedListener(
				new ConfigChangedListener() {
					public void onConfigChanged(ConfigChangedEvent event) {
						events[0] = event;
					}
				});
		FileBasedConfig config = db.getConfig();
		assertNull(events[0]);

		// set a value to some arbitrary key
		config.setString("test", "section", "event", "value");
		// no changes until we save
		assertNull(events[0]);
		config.save();
		assertNotNull(events[0]);
		// correct repository?
		assertEquals(events[0].getRepository(), db);

		// reset for the next test
		events[0] = null;

		// unset the value we have just set above
		config.unset("test", "section", "event");
		// no changes until we save
		assertNull(events[0]);
		config.save();
		assertNotNull(events[0]);
		// correct repository?
		assertEquals(events[0].getRepository(), db);
	}
}